No expert but my approach changed significantly when I began seeing the line as longer phrases that mirror the vocal melody.
For example when Frank sings "Fly me to the moon and let me play among the stars"
I'm not just playing vi ii V7 I chord tones and chromatics
I'm constructing a bass line that feels like it starts and ends with the vocals
When I hit a new chord in the middle of the phrase, on "moon" or "play" , I'm more likely to use a non-root on the one,
but when the phrase completes with "stars" , I'm gonna have a strong cadence to a root note.
I dislike walking lines that don't actually feel like they are going anywhere or relate to the head
For example when Frank sings "Fly me to the moon and let me play among the stars"
I'm not just playing vi ii V7 I chord tones and chromatics
I'm constructing a bass line that feels like it starts and ends with the vocals
When I hit a new chord in the middle of the phrase, on "moon" or "play" , I'm more likely to use a non-root on the one,
but when the phrase completes with "stars" , I'm gonna have a strong cadence to a root note.
I dislike walking lines that don't actually feel like they are going anywhere or relate to the head